Page 1240 - Problem-Based Feline Medicine

1232 PART 15 CAT WITH EYE PROBLEMS

conjunctiva, and a mucopurulent discharge. Pain when Radiology of the orbit and sinuses is useful if one
the mouth is opened supports the diagnosis. suspects the infection has extended from these areas.
The orbital rim is examined for signs of erosion adja-
Check the teeth for dental disease, and the nose for
cent to the frontal and nasal sinus.
nasal discharges suggesting sinus problems.
CT or MRI of the nose and sinuses is used to rule out
Ocular ultrasound is very useful. The orbit is examined
an extension of disease from these areas to the orbit.
for changes in echodensity. Abscesses appear as focal
There will usually be an erosion of the bony orbit, and
hyper-echoic areas. If the inflammation is diffuse, the
signs of disease in the nose or sinuses.
normal muscular cone will be hard to visualize.
Dental radiology is used to check the roots of the
molar teeth for periodontal disease.

RECOMMENDED READING
Barnett KC. A Colour Atlas of Veterinary Ophthalmology. Wolfe Publishing Ltd, London, 1990.
Gelatt Kirk N (ed). Veterinary Ophthalmology, 2nd edn. Lea & Febiger, Philadelphia, 1991.
Gelatt Kirk N. Veterinary Ophthalmology, 3rd edn. Lippincott, Williams and Wilkins, Philadelphia, 1998.
Gelatt Kirk N. Essentials of Veterinary Ophthalmology. Lippincott Williams and Wilkins, Philadelphia, 2000.
Gelatt Kirk N. Colour Atlas of Veterinary Ophthalmology. Lippincott Williams and Wilkins, Philadelphia, 2001.
Gelatt Kirk N, Gelatt JP. Handbook of Small Animal Ophthalmic Surgery, Vol. 1. Extraocular Procedures. Permagon
Veterinary Handbook Series, Florida, 1994.
Gelatt Kirk N, Gelatt JP. Handbook of Small Animal Ophthalmic Surgery, Vol. 2. Intra-ocular Procedures. Permagon
Veterinary Handbook Series, Florida, .
Ketring KL, Glaze MB. Atlas of Feline Ophthalmology. Trenton, NJ, Veterinary Learning Systems, 1994.
Peiffer RL, Petersen-Jones S. Small Animal Ophthalmology, A Problem Oriented Approach, 3rd edn. Saunders,
Philadelphia, 2001.